Army soldiers celebrate after taking over the main port of Yemen's southern city of Aden from gun men, January 4, 2016. Yemeni authorities announced a dusk to dawn curfew in Aden starting on Monday following a night of gunbattles between armed men and government forces that killed at least 12 people from both sides, a local government spokesman said. The government of President Abd-Rabbu Mansour Hadi has been grappling with lawlessness in the southern port since militiamen, backed by a Saudi-led Arab alliance, drove the Iran-allied Houthis out in July. (Photo by Reuters/Stringer)